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6702387: G1: assertion failure: assert(p == current_top || oop(p)->is_oop(),"p is not a block start")

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Do not coalesce dead and moved objects when removing self-forwarding pointers during the evacuation failure. Also fixed a issue in a BOT refinement code for TLABs.

Reviewed-by: tonyp, jcoomes
This commit is contained in:
Igor Veresov 2008-07-03 03:17:29 -07:00
parent 74ee57a572
commit 07198ddeda
2 changed files with 45 additions and 51 deletions
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6
hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp
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@ -412,7 +412,11 @@ G1BlockOffsetArray::forward_to_block_containing_addr_slow(HeapWord* q,
// offset table was actually a lab allocation, and was divided into
// several objects subsequently. Fix this situation as we answer the
// query, by updating entries as we cross them.
size_t next_index = _array->index_for(n) + 1;
// If the fist object's end q is at the card boundary. Start refining
// with the corresponding card (the value of the entry will be basically
// set to 0). If the object crosses the boundary -- start from the next card.
size_t next_index = _array->index_for(n) + !_array->is_card_boundary(n);
HeapWord* next_boundary = _array->address_for_index(next_index);
if (csp() != NULL) {
if (addr >= csp()->top()) return csp()->top();